Home / 1,530.64-2,111.04-1,198.48

Finding the Fourth Proportional to 1,530.64, 2,111.04 and 1,198.48

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Solution

The fourth proportional to 1,530.64, 2,111.04 and 1,198.48 is: 1,652.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,530.64 : 2,111.04 = 1,198.48 : x
  2. Step 2: Convert to fraction form
    1,530.64/2,111.04 = 1,198.48/x
  3. Step 3: Cross multiply
    1,530.64x = 2,111.04 × 1,198.48
  4. Step 4: Simplify right side
    1,530.64x = 2,530,039.22
  5. Step 5: Solve for x
    x = 2,530,039.22/1,530.64
  6. Step 6: Final answer
    x = 1,652.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.